DiaSorin to Launch New LIAISON IgG Test for Detecting Immune Response to SARS-CoV-2

DiaSorin Inc. (‎Saluggia‎, Italy) has completed studies to support the launch of a new serological and high-processing volume test for detecting the presence of antibodies in patients infected with the SARS-CoV-2. The company is now working to obtain the CE mark and the Food and Drug Administration (FDA) Emergency Use Authorization (EUA) by the end of April 2020.

The new serological test is designed to recognize IgG antibodies directed against the S1 and S2 domains of the SARS-CoV-2 virus spike protein, selected for its ability to provide specificity for SARS-CoV-2 compared to other coronaviruses. The product has been designed to respond to the need to identify people in the population who have already been infected with the virus, where diagnosis has not been performed with a swab and a molecular diagnostic test.


The test can be performed on the LIAISON XL platform, which allows fully automated management of the diagnostic process, allowing laboratories to process up to 170 patient sera samples per hour, with a minimum level of intervention required by laboratory operators. The LIAISON SARS-CoV-2 IgG kit will be made available in the next few days for clinical research and evaluation and will be launched in Europe CE marked and submitted to the FDA under the EUA process in the following weeks.

"The alarm generated by the coronavirus pandemic prompted us initially to work on a molecular diagnostic solution that we were able to offer to hospital laboratories very quickly”, said Fabrizio Bonelli, Chief Scientific Officer of DiaSorin. “At the same time, we started to work on an immunodiagnostic test to respond to the increasing need to conduct epidemiological investigations to establish the percentage of the population exposed to the virus in the absence of a diagnosis performed with molecular tests on a swab".

"The pandemic generated by the spread of coronavirus is urging us to give quick and effective responses to the different laboratories and hospitals’ needs," said Carlo Rosa, CEO of the DiaSorin Group. "Our molecular diagnostic test is speeding up the diagnosis process of swabs within hospitals, allowing rapid and effective patient triage and reducing the high pressure to which laboratories are subjected to identify the virus. The new test for the detection of IgG antibodies will help identify those who have developed an immune response to the virus as they are already infected."